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Structural and Photophysical Properties of Guanidinium鈥揑odide鈥怲reated Perovskite Solar Cells

Solar RRL Wiley 7:1 (2023)

Authors:

Mostafa Othman, Tian Zhang, David P McMeekin, Sebastian O F眉rer, Wenxin Mao, Weilun Li, Andrew D Scully, Anthony SR Chesman, Philip NH Nakashima, Udo Bach, Joanne Etheridge

Understanding and Minimizing VOC Losses in All鈥怭erovskite Tandem Photovoltaics

Advanced Energy Materials Wiley 13:3 (2023)

Authors:

Jarla Thiesbrummel, Francisco Pe帽a鈥怌amargo, Kai Oliver Brinkmann, Emilio Gutierrez鈥怭artida, Fengjiu Yang, Jonathan Warby, Steve Albrecht, Dieter Neher, Thomas Riedl, Henry J Snaith, Martin Stolterfoht, Felix Lang

Composition鈥揚roperty Mapping in Bromide-Containing Tin Perovskite Using High-Purity Starting Materials

ACS Applied Energy Materials American Chemical Society (ACS) 5:12 (2022) 14789-14798

Authors:

Tomoya Nakamura, Kento Otsuka, Shuaifeng Hu, Ruito Hashimoto, Taro Morishita, Taketo Handa, Takumi Yamada, Minh Anh Truong, Richard Murdey, Yoshihiko Kanemitsu, Atsushi Wakamiya

Challenges and strategies toward long-term stability of lead-free tin-based perovskite solar cells

Communications Materials Springer Nature 3:1 (2022) 104

Authors:

Ece Aktas, Nagalingam Rajamanickam, Jorge Pascual, Shuaifeng Hu, Mahmoud H Aldamasy, Diego Di Girolamo, Wenhui Li, Giuseppe Nasti, Eugenia Mart铆nez-Ferrero, Atsushi Wakamiya, Emilio Palomares, Antonio Abate

Thermally stable perovskite solar cells by all-vacuum deposition

ACS Applied Materials and Interfaces American Chemical Society 15:1 (2022) 772-781

Abstract:

Vacuum deposition is a solvent-free method suitable for growing thin films of metal halide perovskite (MHP) semiconductors. However, most reports of high-efficiency solar cells based on such vacuum-deposited MHP films incorporate solution-processed hole transport layers (HTLs), thereby complicating prospects of industrial upscaling and potentially affecting the overall device stability. In this work, we investigate organometallic copper phthalocyanine (CuPc) and zinc phthalocyanine (ZnPc) as alternative, low-cost, and durable HTLs in all-vacuum-deposited solvent-free formamidinium-cesium lead triodide [CH(NH2)2]0.83Cs0.17PbI3 (FACsPbI3) perovskite solar cells. We elucidate that the CuPc HTL, when employed in an “inverted” p–i–n solar cell configuration, attains a solar-to-electrical power conversion efficiency of up to 13.9%. Importantly, unencapsulated devices as large as 1 cm2 exhibited excellent long-term stability, demonstrating no observable degradation in efficiency after more than 5000 h in storage and 3700 h under 85 °C thermal stressing in N2 atmosphere.